The problem with the current system is that unlike democracy which requires a majority or a significant portion of those involved to support something before it becomes law or whatever.
In the case of the Retirement Village over by memorial, 17 people have used their 'democratic right' to oppose something that thousands support and many more indifferent on. 17 people are happier to see the burnt out, graffittied hulk of an old school than a brand new complex with quiet residents and better security than what is in their yards now.
The stadium is the same.
Democracy is good, people being allowed to offer their views is good, but a tiny minority's ability to overturn what is clearly supported (or at least not opposed) by a large majority isn't democracy.